IBM DS6000 Manual Do Utilizador

Chapter 6. FlashCopy overview 

occurred on the source or on the target will stay as they were at the time when the FlashCopy 
was established.

If the 

 FlashCopy option was specified, the FlashCopy relationship must be 

withdrawn explicitly.

Volume-based FlashCopy can be used in various combinations with other Copy Services, 
whereas the most suitable will depend on the characteristics of the environment and the 
requirements. 

As illustrated in Figure 6-7, the following combinations are supported at the primary Metro 
Mirror site: 

򐂰

A FlashCopy 

 can become a Metro Mirror 

 and vice versa. 

The order of creation is optional.

򐂰

A FlashCopy 

 can become a Metro Mirror 

 and vice versa. If 

you wish to use a FlashCopy target volume as a Metro Mirror primary, be aware of the 
following considerations:

– The recommended order is to first establish the Metro Mirror, and then create a 

FlashCopy to that Metro Mirror primary using the 

-tgtpprc

 parameter if using DS CLI, 

or TGTPPRIM(YES) if using TSO, or PPRCPRIM(YES) if using ICKDSF, or 
FCTOPPRCPrimary if using DFSMSdss.

The Metro Mirror secondary will not be in a fully consistent state until the Metro Mirror 
enters the full duplex state.

Note: The scenarios discussed in the present section do not apply to data set FlashCopy.